1 /* $OpenBSD: ber.h,v 1.2 2008/12/29 15:48:13 aschrijver Exp $ */ 2 /* $FreeBSD$ */ 3 4 /* 5 * Copyright (c) 2007 Reyk Floeter <reyk@vantronix.net> 6 * Copyright (c) 2006, 2007 Claudio Jeker <claudio@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 struct ber_element { 22 struct ber_element *be_next; 23 unsigned long be_type; 24 unsigned long be_encoding; 25 size_t be_len; 26 int be_free; 27 u_int8_t be_class; 28 union { 29 struct ber_element *bv_sub; 30 void *bv_val; 31 long long bv_numeric; 32 } be_union; 33 #define be_sub be_union.bv_sub 34 #define be_val be_union.bv_val 35 #define be_numeric be_union.bv_numeric 36 }; 37 38 struct ber { 39 int fd; 40 u_char *br_wbuf; 41 u_char *br_wptr; 42 u_char *br_wend; 43 u_char *br_rbuf; 44 u_char *br_rptr; 45 u_char *br_rend; 46 47 unsigned long (*br_application)(struct ber_element *); 48 }; 49 50 /* well-known ber_element types */ 51 #define BER_TYPE_DEFAULT ((unsigned long)-1) 52 #define BER_TYPE_EOC 0 53 #define BER_TYPE_BOOLEAN 1 54 #define BER_TYPE_INTEGER 2 55 #define BER_TYPE_BITSTRING 3 56 #define BER_TYPE_OCTETSTRING 4 57 #define BER_TYPE_NULL 5 58 #define BER_TYPE_OBJECT 6 59 #define BER_TYPE_ENUMERATED 10 60 #define BER_TYPE_SEQUENCE 16 61 #define BER_TYPE_SET 17 62 63 /* ber classes */ 64 #define BER_CLASS_UNIVERSAL 0x0 65 #define BER_CLASS_UNIV BER_CLASS_UNIVERSAL 66 #define BER_CLASS_APPLICATION 0x1 67 #define BER_CLASS_APP BER_CLASS_APPLICATION 68 #define BER_CLASS_CONTEXT 0x2 69 #define BER_CLASS_PRIVATE 0x3 70 #define BER_CLASS_MASK 0x3 71 72 /* common definitions */ 73 #define BER_MIN_OID_LEN 2 /* OBJECT */ 74 #define BER_MAX_OID_LEN 32 /* OBJECT */ 75 76 struct ber_oid { 77 u_int32_t bo_id[BER_MAX_OID_LEN + 1]; 78 size_t bo_n; 79 }; 80 81 __BEGIN_DECLS 82 struct ber_element *ber_get_element(unsigned long); 83 void ber_set_header(struct ber_element *, int, 84 unsigned long); 85 void ber_link_elements(struct ber_element *, 86 struct ber_element *); 87 struct ber_element *ber_unlink_elements(struct ber_element *); 88 void ber_replace_elements(struct ber_element *, 89 struct ber_element *); 90 struct ber_element *ber_add_sequence(struct ber_element *); 91 struct ber_element *ber_add_set(struct ber_element *); 92 struct ber_element *ber_add_integer(struct ber_element *, long long); 93 int ber_get_integer(struct ber_element *, long long *); 94 struct ber_element *ber_add_enumerated(struct ber_element *, long long); 95 int ber_get_enumerated(struct ber_element *, long long *); 96 struct ber_element *ber_add_boolean(struct ber_element *, int); 97 int ber_get_boolean(struct ber_element *, int *); 98 struct ber_element *ber_add_string(struct ber_element *, const char *); 99 struct ber_element *ber_add_nstring(struct ber_element *, const char *, 100 size_t); 101 int ber_get_string(struct ber_element *, char **); 102 int ber_get_nstring(struct ber_element *, void **, 103 size_t *); 104 struct ber_element *ber_add_bitstring(struct ber_element *, const void *, 105 size_t); 106 int ber_get_bitstring(struct ber_element *, void **, 107 size_t *); 108 struct ber_element *ber_add_null(struct ber_element *); 109 int ber_get_null(struct ber_element *); 110 struct ber_element *ber_add_eoc(struct ber_element *); 111 int ber_get_eoc(struct ber_element *); 112 struct ber_element *ber_add_oid(struct ber_element *, struct ber_oid *); 113 struct ber_element *ber_add_noid(struct ber_element *, struct ber_oid *, int); 114 struct ber_element *ber_add_oidstring(struct ber_element *, const char *); 115 int ber_get_oid(struct ber_element *, struct ber_oid *); 116 size_t ber_oid2ber(struct ber_oid *, u_int8_t *, size_t); 117 int ber_string2oid(const char *, struct ber_oid *); 118 struct ber_element *ber_printf_elements(struct ber_element *, char *, ...); 119 int ber_scanf_elements(struct ber_element *, char *, ...); 120 ssize_t ber_get_writebuf(struct ber *, void **); 121 int ber_write_elements(struct ber *, struct ber_element *); 122 void ber_set_readbuf(struct ber *, void *, size_t); 123 struct ber_element *ber_read_elements(struct ber *, struct ber_element *); 124 void ber_free_elements(struct ber_element *); 125 size_t ber_calc_len(struct ber_element *); 126 void ber_set_application(struct ber *, 127 unsigned long (*)(struct ber_element *)); 128 void ber_free(struct ber *); 129 __END_DECLS 130